In this thesis, size-exclusion chromatography (SEC) of wood polymers dissolved in lithium chloride/N,N-dimethylacetamide (LiCl/DMAc) has been used to characterize the molar mass distributions (MMD) of wood polymers in pulp fibers after chemical degradation. Characterization of birch kraft pulps subjected to ozone degradation and acid hydrolysis, respectively, rendered different changes in the M...

Currently, the research on application of bamboo wood plastic fibers to 3D printing technology in Vietnam is limited. Almost all studies mainly focus natural polymers (wood, rubber, coir..) but ignore a rich polymer source, popular Vietnam: bamboo. In addition, quality applied has not responded requirements consumers. The durability printed parts that based high. Surface gloss after implementat...

The structure of wood based medium density fiberboard (MDF) has been studied using synchrotron radiationbased x-ray microtomography (SRμCT.) Fully automated 3D segmentation and analysis routines have been developed in order to gain information about individual fibers, the distribution of the fiber material, fiber orientation, fiber surfaces and size and location of contact areas. Representative...

The use of renewable materials has received a great deal of attention over the last several decades due to the environmental impact and finite resources of petroleum and other non-renewable resources. Cellulose nanofibrils are a type of nanomaterial made from natural resources like wood and non-wood plants, and they are considering promising alternative to existing materials in numerous fields ...

In this study, a functional colorant, Berberine, extracted from Berberis vulgaris wood was applied onto wool fiber using the extract of roots of Rumex Hymenosepolus as biomordant. The effect of treatment variables on the color strength of dyed fibers was examined. The fastness properties of dyed wool against washing, light, dry and wet rubbing were evaluated. Dyed samples were tested for an...